qmk

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git clone git://git.z3bra.org/qmk.git
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commit 9a1613dd1a86e8db65d68756cea48d9d9ba075d8
parent f30d6dd7858dfa3a0cf214113e8b1d45b30d74ce
Author: Danny <nooges@users.noreply.github.com>
Date:   Thu, 12 Jul 2018 13:26:50 -0400

Add Quefrency Keyboard (#3376)

* Fork Fourier keyboard to Quefrency

* Set Quefrency pinouts and initial keymap

* Set configurator layout

Diffstat:
keyboards/quefrency/config.h | 28++++++++++++++++++++++++++++
keyboards/quefrency/i2c.c | 162+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
keyboards/quefrency/i2c.h | 49+++++++++++++++++++++++++++++++++++++++++++++++++
keyboards/quefrency/info.json | 86+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
keyboards/quefrency/keymaps/default/config.h | 31+++++++++++++++++++++++++++++++
keyboards/quefrency/keymaps/default/keymap.c | 35+++++++++++++++++++++++++++++++++++
keyboards/quefrency/keymaps/default/rules.mk | 0
keyboards/quefrency/matrix.c | 467+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
keyboards/quefrency/quefrency.c | 1+
keyboards/quefrency/quefrency.h | 23+++++++++++++++++++++++
keyboards/quefrency/readme.md | 20++++++++++++++++++++
keyboards/quefrency/rev1/config.h | 84+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
keyboards/quefrency/rev1/rev1.c | 7+++++++
keyboards/quefrency/rev1/rev1.h | 37+++++++++++++++++++++++++++++++++++++
keyboards/quefrency/rev1/rules.mk | 0
keyboards/quefrency/rules.mk | 74++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
keyboards/quefrency/serial.c | 228+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
keyboards/quefrency/serial.h | 26++++++++++++++++++++++++++
keyboards/quefrency/split_util.c | 80+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
keyboards/quefrency/split_util.h | 20++++++++++++++++++++
20 files changed, 1458 insertions(+), 0 deletions(-)

diff --git a/keyboards/quefrency/config.h b/keyboards/quefrency/config.h @@ -0,0 +1,28 @@ +/* +Copyright 2012 Jun Wako <wakojun@gmail.com> +Copyright 2015 Jack Humbert + +This program is free software: you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation, either version 2 of the License, or +(at your option) any later version. + +This program is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +GNU General Public License for more details. + +You should have received a copy of the GNU General Public License +along with this program. If not, see <http://www.gnu.org/licenses/>. +*/ + +#ifndef CONFIG_H +#define CONFIG_H + +#include "config_common.h" + +#ifdef SUBPROJECT_rev1 + #include "rev1/config.h" +#endif + +#endif diff --git a/keyboards/quefrency/i2c.c b/keyboards/quefrency/i2c.c @@ -0,0 +1,162 @@ +#include <util/twi.h> +#include <avr/io.h> +#include <stdlib.h> +#include <avr/interrupt.h> +#include <util/twi.h> +#include <stdbool.h> +#include "i2c.h" + +#ifdef USE_I2C + +// Limits the amount of we wait for any one i2c transaction. +// Since were running SCL line 100kHz (=> 10μs/bit), and each transactions is +// 9 bits, a single transaction will take around 90μs to complete. +// +// (F_CPU/SCL_CLOCK) => # of μC cycles to transfer a bit +// poll loop takes at least 8 clock cycles to execute +#define I2C_LOOP_TIMEOUT (9+1)*(F_CPU/SCL_CLOCK)/8 + +#define BUFFER_POS_INC() (slave_buffer_pos = (slave_buffer_pos+1)%SLAVE_BUFFER_SIZE) + +volatile uint8_t i2c_slave_buffer[SLAVE_BUFFER_SIZE]; + +static volatile uint8_t slave_buffer_pos; +static volatile bool slave_has_register_set = false; + +// Wait for an i2c operation to finish +inline static +void i2c_delay(void) { + uint16_t lim = 0; + while(!(TWCR & (1<<TWINT)) && lim < I2C_LOOP_TIMEOUT) + lim++; + + // easier way, but will wait slightly longer + // _delay_us(100); +} + +// Setup twi to run at 100kHz +void i2c_master_init(void) { + // no prescaler + TWSR = 0; + // Set TWI clock frequency to SCL_CLOCK. Need TWBR>10. + // Check datasheets for more info. + TWBR = ((F_CPU/SCL_CLOCK)-16)/2; +} + +// Start a transaction with the given i2c slave address. The direction of the +// transfer is set with I2C_READ and I2C_WRITE. +// returns: 0 => success +// 1 => error +uint8_t i2c_master_start(uint8_t address) { + TWCR = (1<<TWINT) | (1<<TWEN) | (1<<TWSTA); + + i2c_delay(); + + // check that we started successfully + if ( (TW_STATUS != TW_START) && (TW_STATUS != TW_REP_START)) + return 1; + + TWDR = address; + TWCR = (1<<TWINT) | (1<<TWEN); + + i2c_delay(); + + if ( (TW_STATUS != TW_MT_SLA_ACK) && (TW_STATUS != TW_MR_SLA_ACK) ) + return 1; // slave did not acknowledge + else + return 0; // success +} + + +// Finish the i2c transaction. +void i2c_master_stop(void) { + TWCR = (1<<TWINT) | (1<<TWEN) | (1<<TWSTO); + + uint16_t lim = 0; + while(!(TWCR & (1<<TWSTO)) && lim < I2C_LOOP_TIMEOUT) + lim++; +} + +// Write one byte to the i2c slave. +// returns 0 => slave ACK +// 1 => slave NACK +uint8_t i2c_master_write(uint8_t data) { + TWDR = data; + TWCR = (1<<TWINT) | (1<<TWEN); + + i2c_delay(); + + // check if the slave acknowledged us + return (TW_STATUS == TW_MT_DATA_ACK) ? 0 : 1; +} + +// Read one byte from the i2c slave. If ack=1 the slave is acknowledged, +// if ack=0 the acknowledge bit is not set. +// returns: byte read from i2c device +uint8_t i2c_master_read(int ack) { + TWCR = (1<<TWINT) | (1<<TWEN) | (ack<<TWEA); + + i2c_delay(); + return TWDR; +} + +void i2c_reset_state(void) { + TWCR = 0; +} + +void i2c_slave_init(uint8_t address) { + TWAR = address << 0; // slave i2c address + // TWEN - twi enable + // TWEA - enable address acknowledgement + // TWINT - twi interrupt flag + // TWIE - enable the twi interrupt + TWCR = (1<<TWIE) | (1<<TWEA) | (1<<TWINT) | (1<<TWEN); +} + +ISR(TWI_vect); + +ISR(TWI_vect) { + uint8_t ack = 1; + switch(TW_STATUS) { + case TW_SR_SLA_ACK: + // this device has been addressed as a slave receiver + slave_has_register_set = false; + break; + + case TW_SR_DATA_ACK: + // this device has received data as a slave receiver + // The first byte that we receive in this transaction sets the location + // of the read/write location of the slaves memory that it exposes over + // i2c. After that, bytes will be written at slave_buffer_pos, incrementing + // slave_buffer_pos after each write. + if(!slave_has_register_set) { + slave_buffer_pos = TWDR; + // don't acknowledge the master if this memory loctaion is out of bounds + if ( slave_buffer_pos >= SLAVE_BUFFER_SIZE ) { + ack = 0; + slave_buffer_pos = 0; + } + slave_has_register_set = true; + } else { + i2c_slave_buffer[slave_buffer_pos] = TWDR; + BUFFER_POS_INC(); + } + break; + + case TW_ST_SLA_ACK: + case TW_ST_DATA_ACK: + // master has addressed this device as a slave transmitter and is + // requesting data. + TWDR = i2c_slave_buffer[slave_buffer_pos]; + BUFFER_POS_INC(); + break; + + case TW_BUS_ERROR: // something went wrong, reset twi state + TWCR = 0; + default: + break; + } + // Reset everything, so we are ready for the next TWI interrupt + TWCR |= (1<<TWIE) | (1<<TWINT) | (ack<<TWEA) | (1<<TWEN); +} +#endif diff --git a/keyboards/quefrency/i2c.h b/keyboards/quefrency/i2c.h @@ -0,0 +1,49 @@ +#ifndef I2C_H +#define I2C_H + +#include <stdint.h> + +#ifndef F_CPU +#define F_CPU 16000000UL +#endif + +#define I2C_READ 1 +#define I2C_WRITE 0 + +#define I2C_ACK 1 +#define I2C_NACK 0 + +#define SLAVE_BUFFER_SIZE 0x10 + +// i2c SCL clock frequency +#define SCL_CLOCK 400000L + +extern volatile uint8_t i2c_slave_buffer[SLAVE_BUFFER_SIZE]; + +void i2c_master_init(void); +uint8_t i2c_master_start(uint8_t address); +void i2c_master_stop(void); +uint8_t i2c_master_write(uint8_t data); +uint8_t i2c_master_read(int); +void i2c_reset_state(void); +void i2c_slave_init(uint8_t address); + + +static inline unsigned char i2c_start_read(unsigned char addr) { + return i2c_master_start((addr << 1) | I2C_READ); +} + +static inline unsigned char i2c_start_write(unsigned char addr) { + return i2c_master_start((addr << 1) | I2C_WRITE); +} + +// from SSD1306 scrips +extern unsigned char i2c_rep_start(unsigned char addr); +extern void i2c_start_wait(unsigned char addr); +extern unsigned char i2c_readAck(void); +extern unsigned char i2c_readNak(void); +extern unsigned char i2c_read(unsigned char ack); + +#define i2c_read(ack) (ack) ? i2c_readAck() : i2c_readNak(); + +#endif diff --git a/keyboards/quefrency/info.json b/keyboards/quefrency/info.json @@ -0,0 +1,86 @@ +{ + "keyboard_name": "Quefrency", + "url": "https://keeb.io", + "maintainer": "nooges", + "width": 16, + "height": 5, + "layouts": { + "LAYOUT": { + "layout": [ + {"label":"Esc", "x":0, "y":0}, + {"label":"1", "x":1, "y":0}, + {"label":"2", "x":2, "y":0}, + {"label":"3", "x":3, "y":0}, + {"label":"4", "x":4, "y":0}, + {"label":"5", "x":5, "y":0}, + {"label":"6", "x":6, "y":0}, + + {"label":"7", "x":8, "y":0}, + {"label":"8", "x":9, "y":0}, + {"label":"9", "x":10, "y":0}, + {"label":"0", "x":11, "y":0}, + {"label":"-", "x":12, "y":0}, + {"label":"=", "x":13, "y":0}, + {"label":"Backspace", "x":14, "y":0, "w":2}, + + {"label":"Tab", "x":0, "y":1, "w":1.5}, + {"label":"Q", "x":1.5, "y":1}, + {"label":"W", "x":2.5, "y":1}, + {"label":"E", "x":3.5, "y":1}, + {"label":"R", "x":4.5, "y":1}, + {"label":"T", "x":5.5, "y":1}, + + {"label":"Y", "x":7.5, "y":1}, + {"label":"U", "x":8.5, "y":1}, + {"label":"I", "x":9.5, "y":1}, + {"label":"O", "x":10.5, "y":1}, + {"label":"P", "x":11.5, "y":1}, + {"label":"[", "x":12.5, "y":1}, + {"label":"]", "x":13.5, "y":1}, + {"label":"Backslash", "x":14.5, "y":1, "w":1.5}, + + {"label":"Caps", "x":0, "y":2, "w":1.75}, + {"label":"A", "x":1.75, "y":2}, + {"label":"S", "x":2.75, "y":2}, + {"label":"D", "x":3.75, "y":2}, + {"label":"F", "x":4.75, "y":2}, + {"label":"G", "x":5.75, "y":2}, + + {"label":"H", "x":7.75, "y":2}, + {"label":"J", "x":8.75, "y":2}, + {"label":"K", "x":9.75, "y":2}, + {"label":"L", "x":10.75, "y":2}, + {"label":";", "x":11.75, "y":2}, + {"label":"'", "x":12.75, "y":2}, + {"label":"Enter", "x":13.75, "y":2, "w":2.25}, + + {"label":"Shift", "x":0, "y":3, "w":2.25}, + {"label":"Z", "x":2.25, "y":3}, + {"label":"X", "x":3.25, "y":3}, + {"label":"C", "x":4.25, "y":3}, + {"label":"V", "x":5.25, "y":3}, + {"label":"B", "x":6.25, "y":3}, + + {"label":"N", "x":8.25, "y":3}, + {"label":"M", "x":9.25, "y":3}, + {"label":"&lt;", "x":10.25, "y":3}, + {"label":"&gt;", "x":11.25, "y":3}, + {"label":"?", "x":12.25, "y":3}, + {"label":"Shift", "x":13.25, "y":3, "w":1.75}, + {"label":"Up", "x":15, "y":3}, + + {"label":"Ctrl", "x":0, "y":4, "w":1.25}, + {"label":"Alt", "x":1.25, "y":4, "w":1.25}, + {"label":"Gui", "x":2.5, "y":4, "w":1.25}, + {"label":"Fn1", "x":3.75, "y":4, "w":1.25}, + {"label":"Space", "x":5, "y":4, "w":2.25}, + + {"label":"Backspace", "x":8.25, "y":4, "w":2.75}, + {"label":"Gui", "x":11, "y":4, "w":1.25}, + {"label":"Left", "x":12.25, "y":4, "w":1.25}, + {"label":"Down", "x":13.5, "y":4, "w":1.25}, + {"label":"Right", "x":14.75, "y":4, "w":1.25} + ] + } + } +} diff --git a/keyboards/quefrency/keymaps/default/config.h b/keyboards/quefrency/keymaps/default/config.h @@ -0,0 +1,31 @@ +/* +This is the c configuration file for the keymap + +Copyright 2012 Jun Wako <wakojun@gmail.com> +Copyright 2015 Jack Humbert + +This program is free software: you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation, either version 2 of the License, or +(at your option) any later version. + +This program is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +GNU General Public License for more details. + +You should have received a copy of the GNU General Public License +along with this program. If not, see <http://www.gnu.org/licenses/>. +*/ + +#ifndef CONFIG_USER_H +#define CONFIG_USER_H + +#include "config_common.h" + +/* Use I2C or Serial, not both */ + +#define USE_SERIAL +// #define USE_I2C + +#endif diff --git a/keyboards/quefrency/keymaps/default/keymap.c b/keyboards/quefrency/keymaps/default/keymap.c @@ -0,0 +1,35 @@ +#include QMK_KEYBOARD_H + +extern keymap_config_t keymap_config; + +// Each layer gets a name for readability, which is then used in the keymap matrix below. +// The underscores don't mean anything - you can have a layer called STUFF or any other name. +// Layer names don't all need to be of the same length, obviously, and you can also skip them +// entirely and just use numbers. +#define _BASE 0 +#define _FN1 1 + +enum custom_keycodes { + QWERTY = SAFE_RANGE, +}; + +#define _______ KC_TRNS +#define XXXXXXX KC_NO + +const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = { + [_BASE] = LAYOUT( + KC_GESC, KC_1, KC_2, KC_3, KC_4, KC_5, KC_6, KC_7, KC_8, KC_9, KC_0, KC_MINS, KC_EQL, KC_DEL, KC_BSPC, \ + KC_TAB, KC_Q, KC_W, KC_E, KC_R, KC_T, KC_Y, KC_U, KC_I, KC_O, KC_P, KC_LBRC, KC_RBRC, KC_BSLS, \ + KC_CAPS, KC_A, KC_S, KC_D, KC_F, KC_G, KC_H, KC_J, KC_K, KC_L, KC_SCLN, KC_QUOT, KC_ENT, \ + KC_LSFT, KC_Z, KC_X, KC_C, KC_V, KC_B, KC_N, KC_M, KC_COMM, KC_DOT, KC_SLSH, KC_RSFT, KC_UP, \ + KC_LCTL, KC_LALT, KC_LGUI, MO(_FN1),KC_SPC, KC_BSPC, KC_RALT, KC_RCTL, KC_LEFT, KC_DOWN, KC_RGHT + ), + + [_FN1] = LAYOUT( + KC_GESC, KC_F1, KC_F2, KC_F3, KC_F4, KC_F5, KC_F6, KC_F7, KC_F8, KC_F9, KC_F10, KC_F11, KC_F12, KC_DEL, KC_BSPC, \ + RGB_TOG, RGB_MOD, _______, KC_UP, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, \ + _______, _______, KC_LEFT, KC_DOWN, KC_RGHT, _______, _______, _______, _______, _______, _______, _______, _______,\ + _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, \ + KC_TILD, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______ + ) +}; diff --git a/keyboards/quefrency/keymaps/default/rules.mk b/keyboards/quefrency/keymaps/default/rules.mk diff --git a/keyboards/quefrency/matrix.c b/keyboards/quefrency/matrix.c @@ -0,0 +1,467 @@ +/* +Copyright 2012 Jun Wako <wakojun@gmail.com> + +This program is free software: you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation, either version 2 of the License, or +(at your option) any later version. + +This program is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +GNU General Public License for more details. + +You should have received a copy of the GNU General Public License +along with this program. If not, see <http://www.gnu.org/licenses/>. +*/ + +/* + * scan matrix + */ +#include <stdint.h> +#include <stdbool.h> +#include <avr/io.h> +#include "wait.h" +#include "print.h" +#include "debug.h" +#include "util.h" +#include "matrix.h" +#include "split_util.h" +#include "pro_micro.h" +#include "config.h" +#include "timer.h" +#include "backlight.h" + +#ifdef USE_I2C +# include "i2c.h" +#else // USE_SERIAL +# include "serial.h" +#endif + +#ifndef DEBOUNCING_DELAY +# define DEBOUNCING_DELAY 5 +#endif + +#if (DEBOUNCING_DELAY > 0) + static uint16_t debouncing_time; + static bool debouncing = false; +#endif + +#if (MATRIX_COLS <= 8) +# define print_matrix_header() print("\nr/c 01234567\n") +# define print_matrix_row(row) print_bin_reverse8(matrix_get_row(row)) +# define matrix_bitpop(i) bitpop(matrix[i]) +# define ROW_SHIFTER ((uint8_t)1) +#else +# error "Currently only supports 8 COLS" +#endif +static matrix_row_t matrix_debouncing[MATRIX_ROWS]; + +#define ERROR_DISCONNECT_COUNT 5 + +#define SERIAL_LED_ADDR 0x00 + +#define ROWS_PER_HAND (MATRIX_ROWS/2) + +static uint8_t error_count = 0; + +static const uint8_t row_pins[MATRIX_ROWS] = MATRIX_ROW_PINS; +static const uint8_t col_pins[MATRIX_COLS] = MATRIX_COL_PINS; + +/* matrix state(1:on, 0:off) */ +static matrix_row_t matrix[MATRIX_ROWS]; +static matrix_row_t matrix_debouncing[MATRIX_ROWS]; + +#if (DIODE_DIRECTION == COL2ROW) + static void init_cols(void); + static bool read_cols_on_row(matrix_row_t current_matrix[], uint8_t current_row); + static void unselect_rows(void); + static void select_row(uint8_t row); + static void unselect_row(uint8_t row); +#elif (DIODE_DIRECTION == ROW2COL) + static void init_rows(void); + static bool read_rows_on_col(matrix_row_t current_matrix[], uint8_t current_col); + static void unselect_cols(void); + static void unselect_col(uint8_t col); + static void select_col(uint8_t col); +#endif + +__attribute__ ((weak)) +void matrix_init_kb(void) { + matrix_init_user(); +} + +__attribute__ ((weak)) +void matrix_scan_kb(void) { + matrix_scan_user(); +} + +__attribute__ ((weak)) +void matrix_init_user(void) { +} + +__attribute__ ((weak)) +void matrix_scan_user(void) { +} + +inline +uint8_t matrix_rows(void) +{ + return MATRIX_ROWS; +} + +inline +uint8_t matrix_cols(void) +{ + return MATRIX_COLS; +} + +void matrix_init(void) +{ + debug_enable = true; + debug_matrix = true; + debug_mouse = true; + // initialize row and col + unselect_rows(); + init_cols(); + + TX_RX_LED_INIT; + + // initialize matrix state: all keys off + for (uint8_t i=0; i < MATRIX_ROWS; i++) { + matrix[i] = 0; + matrix_debouncing[i] = 0; + } + + matrix_init_quantum(); + +} + +uint8_t _matrix_scan(void) +{ + int offset = isLeftHand ? 0 : (ROWS_PER_HAND); +#if (DIODE_DIRECTION == COL2ROW) + // Set row, read cols + for (uint8_t current_row = 0; current_row < ROWS_PER_HAND; current_row++) { +# if (DEBOUNCING_DELAY > 0) + bool matrix_changed = read_cols_on_row(matrix_debouncing+offset, current_row); + + if (matrix_changed) { + debouncing = true; + debouncing_time = timer_read(); + } + +# else + read_cols_on_row(matrix+offset, current_row); +# endif + + } + +#elif (DIODE_DIRECTION == ROW2COL) + // Set col, read rows + for (uint8_t current_col = 0; current_col < MATRIX_COLS; current_col++) { +# if (DEBOUNCING_DELAY > 0) + bool matrix_changed = read_rows_on_col(matrix_debouncing+offset, current_col); + if (matrix_changed) { + debouncing = true; + debouncing_time = timer_read(); + } +# else + read_rows_on_col(matrix+offset, current_col); +# endif + + } +#endif + +# if (DEBOUNCING_DELAY > 0) + if (debouncing && (timer_elapsed(debouncing_time) > DEBOUNCING_DELAY)) { + for (uint8_t i = 0; i < ROWS_PER_HAND; i++) { + matrix[i+offset] = matrix_debouncing[i+offset]; + } + debouncing = false; + } +# endif + + return 1; +} + +#ifdef USE_I2C + +// Get rows from other half over i2c +int i2c_transaction(void) { + int slaveOffset = (isLeftHand) ? (ROWS_PER_HAND) : 0; + + int err = i2c_master_start(SLAVE_I2C_ADDRESS + I2C_WRITE); + if (err) goto i2c_error; + + // start of matrix stored at 0x00 + err = i2c_master_write(0x00); + if (err) goto i2c_error; + + // Start read + err = i2c_master_start(SLAVE_I2C_ADDRESS + I2C_READ); + if (err) goto i2c_error; + + if (!err) { + int i; + for (i = 0; i < ROWS_PER_HAND-1; ++i) { + matrix[slaveOffset+i] = i2c_master_read(I2C_ACK); + } + matrix[slaveOffset+i] = i2c_master_read(I2C_NACK); + i2c_master_stop(); + } else { +i2c_error: // the cable is disconnceted, or something else went wrong + i2c_reset_state(); + return err; + } + + return 0; +} + +#else // USE_SERIAL + +int serial_transaction(void) { + int slaveOffset = (isLeftHand) ? (ROWS_PER_HAND) : 0; + + if (serial_update_buffers()) { + return 1; + } + + for (int i = 0; i < ROWS_PER_HAND; ++i) { + matrix[slaveOffset+i] = serial_slave_buffer[i]; + } + +#ifdef BACKLIGHT_ENABLE + // Write backlight level for slave to read + serial_master_buffer[SERIAL_LED_ADDR] = get_backlight_level(); +#endif + return 0; +} +#endif + +uint8_t matrix_scan(void) +{ + uint8_t ret = _matrix_scan(); + +#ifdef USE_I2C + if( i2c_transaction() ) { +#else // USE_SERIAL + if( serial_transaction() ) { +#endif + // turn on the indicator led when halves are disconnected + TXLED1; + + error_count++; + + if (error_count > ERROR_DISCONNECT_COUNT) { + // reset other half if disconnected + int slaveOffset = (isLeftHand) ? (ROWS_PER_HAND) : 0; + for (int i = 0; i < ROWS_PER_HAND; ++i) { + matrix[slaveOffset+i] = 0; + } + } + } else { + // turn off the indicator led on no error + TXLED0; + error_count = 0; + } + matrix_scan_quantum(); + return ret; +} + +void matrix_slave_scan(void) { + _matrix_scan(); + + int offset = (isLeftHand) ? 0 : ROWS_PER_HAND; + +#ifdef USE_I2C + for (int i = 0; i < ROWS_PER_HAND; ++i) { + i2c_slave_buffer[i] = matrix[offset+i]; + } +#else // USE_SERIAL + for (int i = 0; i < ROWS_PER_HAND; ++i) { + serial_slave_buffer[i] = matrix[offset+i]; + } + +#ifdef BACKLIGHT_ENABLE + // Read backlight level sent from master and update level on slave + backlight_set(serial_master_buffer[SERIAL_LED_ADDR]); +#endif +#endif +} + +bool matrix_is_modified(void) +{ + if (debouncing) return false; + return true; +} + +inline +bool matrix_is_on(uint8_t row, uint8_t col) +{ + return (matrix[row] & ((matrix_row_t)1<<col)); +} + +inline +matrix_row_t matrix_get_row(uint8_t row) +{ + return matrix[row]; +} + +void matrix_print(void) +{ + print("\nr/c 0123456789ABCDEF\n"); + for (uint8_t row = 0; row < MATRIX_ROWS; row++) { + phex(row); print(": "); + pbin_reverse16(matrix_get_row(row)); + print("\n"); + } +} + +uint8_t matrix_key_count(void) +{ + uint8_t count = 0; + for (uint8_t i = 0; i < MATRIX_ROWS; i++) { + count += bitpop16(matrix[i]); + } + return count; +} + +#if (DIODE_DIRECTION == COL2ROW) + +static void init_cols(void) +{ + for(uint8_t x = 0; x < MATRIX_COLS; x++) { + uint8_t pin = col_pins[x]; + _SFR_IO8((pin >> 4) + 1) &= ~_BV(pin & 0xF); // IN + _SFR_IO8((pin >> 4) + 2) |= _BV(pin & 0xF); // HI + } +} + +static bool read_cols_on_row(matrix_row_t current_matrix[], uint8_t current_row) +{ + // Store last value of row prior to reading + matrix_row_t last_row_value = current_matrix[current_row]; + + // Clear data in matrix row + current_matrix[current_row] = 0; + + // Select row and wait for row selecton to stabilize + select_row(current_row); + wait_us(30); + + // For each col... + for(uint8_t col_index = 0; col_index < MATRIX_COLS; col_index++) { + + // Select the col pin to read (active low) + uint8_t pin = col_pins[col_index]; + uint8_t pin_state = (_SFR_IO8(pin >> 4) & _BV(pin & 0xF)); + + // Populate the matrix row with the state of the col pin + current_matrix[current_row] |= pin_state ? 0 : (ROW_SHIFTER << col_index); + } + + // Unselect row + unselect_row(current_row); + + return (last_row_value != current_matrix[current_row]); +} + +static void select_row(uint8_t row) +{ + uint8_t pin = row_pins[row]; + _SFR_IO8((pin >> 4) + 1) |= _BV(pin & 0xF); // OUT + _SFR_IO8((pin >> 4) + 2) &= ~_BV(pin & 0xF); // LOW +} + +static void unselect_row(uint8_t row) +{ + uint8_t pin = row_pins[row]; + _SFR_IO8((pin >> 4) + 1) &= ~_BV(pin & 0xF); // IN + _SFR_IO8((pin >> 4) + 2) |= _BV(pin & 0xF); // HI +} + +static void unselect_rows(void) +{ + for(uint8_t x = 0; x < ROWS_PER_HAND; x++) { + uint8_t pin = row_pins[x]; + _SFR_IO8((pin >> 4) + 1) &= ~_BV(pin & 0xF); // IN + _SFR_IO8((pin >> 4) + 2) |= _BV(pin & 0xF); // HI + } +} + +#elif (DIODE_DIRECTION == ROW2COL) + +static void init_rows(void) +{ + for(uint8_t x = 0; x < ROWS_PER_HAND; x++) { + uint8_t pin = row_pins[x]; + _SFR_IO8((pin >> 4) + 1) &= ~_BV(pin & 0xF); // IN + _SFR_IO8((pin >> 4) + 2) |= _BV(pin & 0xF); // HI + } +} + +static bool read_rows_on_col(matrix_row_t current_matrix[], uint8_t current_col) +{ + bool matrix_changed = false; + + // Select col and wait for col selecton to stabilize + select_col(current_col); + wait_us(30); + + // For each row... + for(uint8_t row_index = 0; row_index < ROWS_PER_HAND; row_index++) + { + + // Store last value of row prior to reading + matrix_row_t last_row_value = current_matrix[row_index]; + + // Check row pin state + if ((_SFR_IO8(row_pins[row_index] >> 4) & _BV(row_pins[row_index] & 0xF)) == 0) + { + // Pin LO, set col bit + current_matrix[row_index] |= (ROW_SHIFTER << current_col); + } + else + { + // Pin HI, clear col bit + current_matrix[row_index] &= ~(ROW_SHIFTER << current_col); + } + + // Determine if the matrix changed state + if ((last_row_value != current_matrix[row_index]) && !(matrix_changed)) + { + matrix_changed = true; + } + } + + // Unselect col + unselect_col(current_col); + + return matrix_changed; +} + +static void select_col(uint8_t col) +{ + uint8_t pin = col_pins[col]; + _SFR_IO8((pin >> 4) + 1) |= _BV(pin & 0xF); // OUT + _SFR_IO8((pin >> 4) + 2) &= ~_BV(pin & 0xF); // LOW +} + +static void unselect_col(uint8_t col) +{ + uint8_t pin = col_pins[col]; + _SFR_IO8((pin >> 4) + 1) &= ~_BV(pin & 0xF); // IN + _SFR_IO8((pin >> 4) + 2) |= _BV(pin & 0xF); // HI +} + +static void unselect_cols(void) +{ + for(uint8_t x = 0; x < MATRIX_COLS; x++) { + uint8_t pin = col_pins[x]; + _SFR_IO8((pin >> 4) + 1) &= ~_BV(pin & 0xF); // IN + _SFR_IO8((pin >> 4) + 2) |= _BV(pin & 0xF); // HI + } +} + +#endif diff --git a/keyboards/quefrency/quefrency.c b/keyboards/quefrency/quefrency.c @@ -0,0 +1 @@ +#include "quefrency.h" diff --git a/keyboards/quefrency/quefrency.h b/keyboards/quefrency/quefrency.h @@ -0,0 +1,23 @@ +#ifndef QUEFRENCY_H +#define QUEFRENCY_H + +#include "quantum.h" + +#ifdef KEYBOARD_quefrency_rev1 + #include "rev1.h" +#endif + +// Used to create a keymap using only KC_ prefixed keys +#define LAYOUT_kc( \ + LA1, LA2, LA3, LA4, LA5, LA6, RA1, RA2, RA3, RA4, RA5, RA6, RA7, \ + LB1, LB2, LB3, LB4, LB5, LB6, RB1, RB2, RB3, RB4, RB5, RB7, \ + LC1, LC2, LC3, LC4, LC5, LC6, RC1, RC3, RC4, RC5, RC6, RC7, \ + LD1, LD2, LD3, LD4, LD5, RD1, RD4, RD5, RD6, RD7 \ + ) \ + LAYOUT( \ + KC_##LA1, KC_##LA2, KC_##LA3, KC_##LA4, KC_##LA5, KC_##LA6, KC_##RA1, KC_##RA2, KC_##RA3, KC_##RA4, KC_##RA5, KC_##RA6, KC_##RA7, \ + KC_##LB1, KC_##LB2, KC_##LB3, KC_##LB4, KC_##LB5, KC_##LB6, KC_##RB1, KC_##RB2, KC_##RB3, KC_##RB4, KC_##RB5, KC_##RB7, \ + KC_##LC1, KC_##LC2, KC_##LC3, KC_##LC4, KC_##LC5, KC_##LC6, KC_##RC1, KC_##RC3, KC_##RC4, KC_##RC5, KC_##RC6, KC_##RC7, \ + KC_##LD1, KC_##LD2, KC_##LD3, KC_##LD4, KC_##LD5, KC_##RD1, KC_##RD4, KC_##RD5, KC_##RD6, KC_##RD7 \ + ) +#endif diff --git a/keyboards/quefrency/readme.md b/keyboards/quefrency/readme.md @@ -0,0 +1,20 @@ +Quefrency +========= + +A split 60% staggered keyboard made and sold by Keebio. [More info at Keebio](https://keeb.io). + +Keyboard Maintainer: [Bakingpy/nooges](https://github.com/nooges) +Hardware Supported: Pro Micro +Hardware Availability: [Keebio](https://keeb.io/) + +Make example for this keyboard (after setting up your build environment): + + make quefrency/rev1:default + +Example of flashing this keyboard: + + make quefrency/rev1:default:avrdude + +See [build environment setup](https://docs.qmk.fm/build_environment_setup.html) then the [make instructions](https://docs.qmk.fm/make_instructions.html) for more information. + +A build guide for this keyboard can be found here: [Keebio Build Guides](https://docs.keeb.io) diff --git a/keyboards/quefrency/rev1/config.h b/keyboards/quefrency/rev1/config.h @@ -0,0 +1,84 @@ +/* +Copyright 2012 Jun Wako <wakojun@gmail.com> +Copyright 2015 Jack Humbert + +This program is free software: you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation, either version 2 of the License, or +(at your option) any later version. + +This program is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +GNU General Public License for more details. + +You should have received a copy of the GNU General Public License +along with this program. If not, see <http://www.gnu.org/licenses/>. +*/ + +#ifndef REV1_CONFIG_H +#define REV1_CONFIG_H + +#include "../config.h" + +/* USB Device descriptor parameter */ +#define VENDOR_ID 0xCB10 +#define PRODUCT_ID 0x1257 +#define DEVICE_VER 0x0100 +#define MANUFACTURER Keebio +#define PRODUCT Quefrency +#define DESCRIPTION Split 60 percent staggered keyboard + +/* key matrix size */ +// Rows are doubled-up +#define MATRIX_ROWS 10 +#define MATRIX_COLS 8 + +// wiring of each half +#define MATRIX_ROW_PINS { F4, D4, D7, E6, B4 } +#define MATRIX_COL_PINS { F5, F6, F7, B1, B3, B2, B6, C6 } + +/* define if matrix has ghost */ +//#define MATRIX_HAS_GHOST + +/* Set 0 if debouncing isn't needed */ +#define DEBOUNCING_DELAY 5 + +/* Mechanical locking support. Use KC_LCAP, KC_LNUM or KC_LSCR instead in keymap */ +#define LOCKING_SUPPORT_ENABLE +/* Locking resynchronize hack */ +#define LOCKING_RESYNC_ENABLE + +/* key combination for command */ +#define IS_COMMAND() ( \ + keyboard_report->mods == (MOD_BIT(KC_LSHIFT) | MOD_BIT(KC_RSHIFT)) \ +) + +/* ws2812 RGB LED */ +#define RGB_DI_PIN D3 +#define RGBLIGHT_TIMER +#define RGBLIGHT_ANIMATIONS +#define RGBLED_NUM 16 // Number of LEDs +#define ws2812_PORTREG PORTD +#define ws2812_DDRREG DDRD + +/* + * Feature disable options + * These options are also useful to firmware size reduction. + */ + +/* disable debug print */ +// #define NO_DEBUG + +/* disable print */ +// #define NO_PRINT + +/* disable action features */ +//#define NO_ACTION_LAYER +//#define NO_ACTION_TAPPING +//#define NO_ACTION_ONESHOT +//#define NO_ACTION_MACRO +//#define NO_ACTION_FUNCTION + + +#endif diff --git a/keyboards/quefrency/rev1/rev1.c b/keyboards/quefrency/rev1/rev1.c @@ -0,0 +1,7 @@ +#include "quefrency.h" + + +void matrix_init_kb(void) { + matrix_init_user(); +}; + diff --git a/keyboards/quefrency/rev1/rev1.h b/keyboards/quefrency/rev1/rev1.h @@ -0,0 +1,37 @@ +#ifndef REV1_H +#define REV1_H + +#include "../quefrency.h" + +#include "quantum.h" + + +#ifdef USE_I2C +#include <stddef.h> +#ifdef __AVR__ + #include <avr/io.h> + #include <avr/interrupt.h> +#endif +#endif + +#define LAYOUT( \ + LA1, LA2, LA3, LA4, LA5, LA6, LA7, RA1, RA2, RA3, RA4, RA5, RA6, RA7, RA8, \ + LB1, LB2, LB3, LB4, LB5, LB6, RB1, RB2, RB3, RB4, RB5, RB6, RB7, RB8, \ + LC1, LC2, LC3, LC4, LC5, LC6, RC1, RC2, RC3, RC4, RC5, RC6, RC8, \ + LD1, LD3, LD4, LD5, LD6, LD7, RD1, RD2, RD3, RD4, RD6, RD7, RD8, \ + LE1, LE2, LE3, LE5, LE7, RE1, RE4, RE5, RE6, RE7, RE8 \ + ) \ + { \ + { LA1, LA2, LA3, LA4, LA5, LA6, LA7, KC_NO }, \ + { LB1, LB2, LB3, LB4, LB5, LB6, KC_NO, KC_NO }, \ + { LC1, LC2, LC3, LC4, LC5, LC6, KC_NO, KC_NO }, \ + { LD1, KC_NO, LD3, LD4, LD5, LD6, LD7, KC_NO }, \ + { LE1, LE2, LE3, KC_NO, LE5, KC_NO, LE7, KC_NO }, \ + { RA1, RA2, RA3, RA4, RA5, RA6, RA7, RA8 }, \ + { RB1, RB2, RB3, RB4, RB5, RB6, RB7, RB8 }, \ + { RC1, RC2, RC3, RC4, RC5, RC6, KC_NO, RC8 }, \ + { RD1, RD2, RD3, RD4, KC_NO, RD6, RD7, RD8 }, \ + { RE1, KC_NO, KC_NO, RE4, RE5, RE6, RE7, RE8 } \ + } + +#endif diff --git a/keyboards/quefrency/rev1/rules.mk b/keyboards/quefrency/rev1/rules.mk diff --git a/keyboards/quefrency/rules.mk b/keyboards/quefrency/rules.mk @@ -0,0 +1,74 @@ +SRC += matrix.c \ + i2c.c \ + split_util.c \ + serial.c + +# MCU name +#MCU = at90usb1287 +MCU = atmega32u4 + +# Processor frequency. +# This will define a symbol, F_CPU, in all source code files equal to the +# processor frequency in Hz. You can then use this symbol in your source code to +# calculate timings. Do NOT tack on a 'UL' at the end, this will be done +# automatically to create a 32-bit value in your source code. +# +# This will be an integer division of F_USB below, as it is sourced by +# F_USB after it has run through any CPU prescalers. Note that this value +# does not *change* the processor frequency - it should merely be updated to +# reflect the processor speed set externally so that the code can use accurate +# software delays. +F_CPU = 16000000 + +# +# LUFA specific +# +# Target architecture (see library "Board Types" documentation). +ARCH = AVR8 + +# Input clock frequency. +# This will define a symbol, F_USB, in all source code files equal to the +# input clock frequency (before any prescaling is performed) in Hz. This value may +# differ from F_CPU if prescaling is used on the latter, and is required as the +# raw input clock is fed directly to the PLL sections of the AVR for high speed +# clock generation for the USB and other AVR subsections. Do NOT tack on a 'UL' +# at the end, this will be done automatically to create a 32-bit value in your +# source code. +# +# If no clock division is performed on the input clock inside the AVR (via the +# CPU clock adjust registers or the clock division fuses), this will be equal to F_CPU. +F_USB = $(F_CPU) + +# Bootloader +# This definition is optional, and if your keyboard supports multiple bootloaders of +# different sizes, comment this out, and the correct address will be loaded +# automatically (+60). See bootloader.mk for all options. +BOOTLOADER = caterina + +# Interrupt driven control endpoint task(+60) +OPT_DEFS += -DINTERRUPT_CONTROL_ENDPOINT + +# Build Options +# change to "no" to disable the options, or define them in the Makefile in +# the appropriate keymap folder that will get included automatically +# +BOOTMAGIC_ENABLE = no # Virtual DIP switch configuration(+1000) +MOUSEKEY_ENABLE = no # Mouse keys(+4700) +EXTRAKEY_ENABLE = yes # Audio control and System control(+450) +CONSOLE_ENABLE = no # Console for debug(+400) +COMMAND_ENABLE = yes # Commands for debug and configuration +NKRO_ENABLE = no # Nkey Rollover - if this doesn't work, see here: https://github.com/tmk/tmk_keyboard/wiki/FAQ#nkro-doesnt-work +BACKLIGHT_ENABLE = no # Enable keyboard backlight functionality +MIDI_ENABLE = no # MIDI controls +AUDIO_ENABLE = no # Audio output on port C6 +UNICODE_ENABLE = no # Unicode +BLUETOOTH_ENABLE = no # Enable Bluetooth with the Adafruit EZ-Key HID +RGBLIGHT_ENABLE = yes # Enable WS2812 RGB underlight. Do not enable this with audio at the same time. +SUBPROJECT_rev1 = yes +USE_I2C = yes +# Do not enable SLEEP_LED_ENABLE. it uses the same timer as BACKLIGHT_ENABLE +SLEEP_LED_ENABLE = no # Breathing sleep LED during USB suspend + +CUSTOM_MATRIX = yes + +DEFAULT_FOLDER = quefrency/rev1 diff --git a/keyboards/quefrency/serial.c b/keyboards/quefrency/serial.c @@ -0,0 +1,228 @@ +/* + * WARNING: be careful changing this code, it is very timing dependent + */ + +#ifndef F_CPU +#define F_CPU 16000000 +#endif + +#include <avr/io.h> +#include <avr/interrupt.h> +#include <util/delay.h> +#include <stdbool.h> +#include "serial.h" + +#ifndef USE_I2C + +// Serial pulse period in microseconds. Its probably a bad idea to lower this +// value. +#define SERIAL_DELAY 24 + +uint8_t volatile serial_slave_buffer[SERIAL_SLAVE_BUFFER_LENGTH] = {0}; +uint8_t volatile serial_master_buffer[SERIAL_MASTER_BUFFER_LENGTH] = {0}; + +#define SLAVE_DATA_CORRUPT (1<<0) +volatile uint8_t status = 0; + +inline static +void serial_delay(void) { + _delay_us(SERIAL_DELAY); +} + +inline static +void serial_output(void) { + SERIAL_PIN_DDR |= SERIAL_PIN_MASK; +} + +// make the serial pin an input with pull-up resistor +inline static +void serial_input(void) { + SERIAL_PIN_DDR &= ~SERIAL_PIN_MASK; + SERIAL_PIN_PORT |= SERIAL_PIN_MASK; +} + +inline static +uint8_t serial_read_pin(void) { + return !!(SERIAL_PIN_INPUT & SERIAL_PIN_MASK); +} + +inline static +void serial_low(void) { + SERIAL_PIN_PORT &= ~SERIAL_PIN_MASK; +} + +inline static +void serial_high(void) { + SERIAL_PIN_PORT |= SERIAL_PIN_MASK; +} + +void serial_master_init(void) { + serial_output(); + serial_high(); +} + +void serial_slave_init(void) { + serial_input(); + + // Enable INT0 + EIMSK |= _BV(INT0); + // Trigger on falling edge of INT0 + EICRA &= ~(_BV(ISC00) | _BV(ISC01)); +} + +// Used by the master to synchronize timing with the slave. +static +void sync_recv(void) { + serial_input(); + // This shouldn't hang if the slave disconnects because the + // serial line will float to high if the slave does disconnect. + while (!serial_read_pin()); + serial_delay(); +} + +// Used by the slave to send a synchronization signal to the master. +static +void sync_send(void) { + serial_output(); + + serial_low(); + serial_delay(); + + serial_high(); +} + +// Reads a byte from the serial line +static +uint8_t serial_read_byte(void) { + uint8_t byte = 0; + serial_input(); + for ( uint8_t i = 0; i < 8; ++i) { + byte = (byte << 1) | serial_read_pin(); + serial_delay(); + _delay_us(1); + } + + return byte; +} + +// Sends a byte with MSB ordering +static +void serial_write_byte(uint8_t data) { + uint8_t b = 8; + serial_output(); + while( b-- ) { + if(data & (1 << b)) { + serial_high(); + } else { + serial_low(); + } + serial_delay(); + } +} + +// interrupt handle to be used by the slave device +ISR(SERIAL_PIN_INTERRUPT) { + sync_send(); + + uint8_t checksum = 0; + for (int i = 0; i < SERIAL_SLAVE_BUFFER_LENGTH; ++i) { + serial_write_byte(serial_slave_buffer[i]); + sync_send(); + checksum += serial_slave_buffer[i]; + } + serial_write_byte(checksum); + sync_send(); + + // wait for the sync to finish sending + serial_delay(); + + // read the middle of pulses + _delay_us(SERIAL_DELAY/2); + + uint8_t checksum_computed = 0; + for (int i = 0; i < SERIAL_MASTER_BUFFER_LENGTH; ++i) { + serial_master_buffer[i] = serial_read_byte(); + sync_send(); + checksum_computed += serial_master_buffer[i]; + } + uint8_t checksum_received = serial_read_byte(); + sync_send(); + + serial_input(); // end transaction + + if ( checksum_computed != checksum_received ) { + status |= SLAVE_DATA_CORRUPT; + } else { + status &= ~SLAVE_DATA_CORRUPT; + } +} + +inline +bool serial_slave_DATA_CORRUPT(void) { + return status & SLAVE_DATA_CORRUPT; +} + +// Copies the serial_slave_buffer to the master and sends the +// serial_master_buffer to the slave. +// +// Returns: +// 0 => no error +// 1 => slave did not respond +int serial_update_buffers(void) { + // this code is very time dependent, so we need to disable interrupts + cli(); + + // signal to the slave that we want to start a transaction + serial_output(); + serial_low(); + _delay_us(1); + + // wait for the slaves response + serial_input(); + serial_high(); + _delay_us(SERIAL_DELAY); + + // check if the slave is present + if (serial_read_pin()) { + // slave failed to pull the line low, assume not present + sei(); + return 1; + } + + // if the slave is present syncronize with it + sync_recv(); + + uint8_t checksum_computed = 0; + // receive data from the slave + for (int i = 0; i < SERIAL_SLAVE_BUFFER_LENGTH; ++i) { + serial_slave_buffer[i] = serial_read_byte(); + sync_recv(); + checksum_computed += serial_slave_buffer[i]; + } + uint8_t checksum_received = serial_read_byte(); + sync_recv(); + + if (checksum_computed != checksum_received) { + sei(); + return 1; + } + + uint8_t checksum = 0; + // send data to the slave + for (int i = 0; i < SERIAL_MASTER_BUFFER_LENGTH; ++i) { + serial_write_byte(serial_master_buffer[i]); + sync_recv(); + checksum += serial_master_buffer[i]; + } + serial_write_byte(checksum); + sync_recv(); + + // always, release the line when not in use + serial_output(); + serial_high(); + + sei(); + return 0; +} + +#endif diff --git a/keyboards/quefrency/serial.h b/keyboards/quefrency/serial.h @@ -0,0 +1,26 @@ +#ifndef MY_SERIAL_H +#define MY_SERIAL_H + +#include "config.h" +#include <stdbool.h> + +/* TODO: some defines for interrupt setup */ +#define SERIAL_PIN_DDR DDRD +#define SERIAL_PIN_PORT PORTD +#define SERIAL_PIN_INPUT PIND +#define SERIAL_PIN_MASK _BV(PD0) +#define SERIAL_PIN_INTERRUPT INT0_vect + +#define SERIAL_SLAVE_BUFFER_LENGTH MATRIX_ROWS/2 +#define SERIAL_MASTER_BUFFER_LENGTH 1 + +// Buffers for master - slave communication +extern volatile uint8_t serial_slave_buffer[SERIAL_SLAVE_BUFFER_LENGTH]; +extern volatile uint8_t serial_master_buffer[SERIAL_MASTER_BUFFER_LENGTH]; + +void serial_master_init(void); +void serial_slave_init(void); +int serial_update_buffers(void); +bool serial_slave_data_corrupt(void); + +#endif diff --git a/keyboards/quefrency/split_util.c b/keyboards/quefrency/split_util.c @@ -0,0 +1,80 @@ +#include <avr/io.h> +#include <avr/wdt.h> +#include <avr/power.h> +#include <avr/interrupt.h> +#include <util/delay.h> +#include <avr/eeprom.h> +#include "split_util.h" +#include "matrix.h" +#include "keyboard.h" +#include "config.h" +#include "timer.h" +#include "pincontrol.h" + +#ifdef USE_I2C +# include "i2c.h" +#else +# include "serial.h" +#endif + +volatile bool isLeftHand = true; + +static void setup_handedness(void) { + // Test D2 pin for handedness, if D2 is grounded, it's the right hand + pinMode(D2, PinDirectionInput); + isLeftHand = digitalRead(D2); +} + +static void keyboard_master_setup(void) { +#ifdef USE_I2C + i2c_master_init(); +#ifdef SSD1306OLED + matrix_master_OLED_init(); +#endif +#else + serial_master_init(); +#endif +} + +static void keyboard_slave_setup(void) { + timer_init(); +#ifdef USE_I2C + i2c_slave_init(SLAVE_I2C_ADDRESS); +#else + serial_slave_init(); +#endif +} + +bool has_usb(void) { + USBCON |= (1 << OTGPADE); //enables VBUS pad + _delay_us(5); + return (USBSTA & (1<<VBUS)); //checks state of VBUS +} + +void split_keyboard_setup(void) { + setup_handedness(); + + if (has_usb()) { + keyboard_master_setup(); + } else { + keyboard_slave_setup(); + } + sei(); +} + +void keyboard_slave_loop(void) { + matrix_init(); + + while (1) { + matrix_slave_scan(); + } +} + +// this code runs before the usb and keyboard is initialized +void matrix_setup(void) { + split_keyboard_setup(); + + if (!has_usb()) { + keyboard_slave_loop(); + } +} diff --git a/keyboards/quefrency/split_util.h b/keyboards/quefrency/split_util.h @@ -0,0 +1,20 @@ +#ifndef SPLIT_KEYBOARD_UTIL_H +#define SPLIT_KEYBOARD_UTIL_H + +#include <stdbool.h> +#include "eeconfig.h" + +#define SLAVE_I2C_ADDRESS 0x32 + +extern volatile bool isLeftHand; + +// slave version of matix scan, defined in matrix.c +void matrix_slave_scan(void); + +void split_keyboard_setup(void); +bool has_usb(void); +void keyboard_slave_loop(void); + +void matrix_master_OLED_init (void); + +#endif